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openSUSE: 2017:0792-1 Important: mbedtls Remote Code Execution

opensuse
Calendar Grey March 22, 2017
Dist Opensuse Esm H88
Important update for fixing the severe mbedtls vulnerability on openSUSE: 2017:0792-1, along with the provided guidelines for carrying out the necessary updates.
An update that fixes one vulnerability is now available

Description

This update to mbedtls 1.3.19 fixes security issues and bugs.

The following vulnerability was fixed:

CVE-2017-2784: A remote user could have used a specially crafted

certificate to cause mbedtls to free a buffer allocated on the stack when

verifying the validity

of public key with a secp224k1 curve, which could have

allowed remote code execution on some platforms (boo#1029017)

The following non-security changes are included:

- Add checks to prevent signature forgeries for very large messages while

using RSA through the PK module in 64-bit systems.

- Fixed potential livelock during the parsing of a CRL in PEM format

Patch

Patch Instructions:

To install this openSUSE Security Update use YaST online_update.

Alternatively you can run the command listed for your product:

- SUSE Package Hub for SUSE Linux Enterprise 12:

zypper in -t patch openSUSE-2017-372=1

To bring your system up-to-date, use "zypper patch".

Package List

- SUSE Package Hub for SUSE Linux Enterprise 12 (aarch64 ppc64le s390x x86_64):

libmbedtls9-1.3.19-5.1

mbedtls-devel-1.3.19-5.1

- SUSE Package Hub for SUSE Linux Enterprise 12 (aarch64 x86_64):

libmbedtls9-debuginfo-1.3.19-5.1

mbedtls-debugsource-1.3.19-5.1

References

https://www.suse.com/security/cve/CVE-2017-2784.html

https://bugzilla.suse.com/1029017

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2017:0792-1
Rating: important
Affected Products: SUSE Package Hub for SUSE Linux Enterprise 12 .

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